Assume that we need room to store 3, 32 bit INTs on the top of the stack. Which instruction will reserve space on the top of the stack for those values? ADDI $SP, $SP, 3 SUBI $SP, $SP, 3 ADDI $SP, $SP, 12 SUBI $SP, $SP, 12 Assume we want to remove 2 integers from the top of the stack. Which instruction will accomplish this? ADDI $SP, $SP, 2 ADDI $SP, $SP, 8 SUBI $SP, $SP, 2 SUBI $SP, $SP, 28 1 p Which pair of instructions will save the value of the $RA register to the stack? 1 ADDI $SP, $SP, 4 2 SW $RA, OG $SP) 1 ADDI $SP, $SP, 4 2 SW $SP, OC SRA ) Option 1 Option 2 1 SUBI $SP, $SP, 4 2 SW SRA, OG $SP ) 1 SUBI $SP, $SP, 4 2 SW $SP, OC $RA ) Option 3 Option 4